I think it's because we've been trained to care over the years of vehicle ownership and the idea that model year is tied to value. Tesla is different but not all consumers know that and even for myself, if everything is equal, I'd rather get a car I can post as a '22 model vs a '21 model year even if it's not guaranteed to bring in more money. Clearly Tesla model years do not work like traditional manufacturers, but we're talking about a thought process engrained in the masses over decades of vehicle ownership.